well I leave a bunch of crickets in his tank and if he is hungry he will eat them. he will eat 6 medium crickets in a week. So if runs low I pick up more and drop them in and I feed the crickets calcium jelly stuff and plain pop corn. :P Crickets LOVE popcorn. They chow down. Its either that or may eat my frog. My little sisters frog was eaten by crickets. They killed him and ate her frog. I always told her to leave food in there for the crickets but she said they were fine. Lessoned learned on her side.